Gio.MenuItem

g GObject.Object GObject.Object Gio.MenuItem Gio.MenuItem GObject.Object->Gio.MenuItem

Subclasses:None

Methods

Inherited:GObject.Object (37)
Structs:GObject.ObjectClass (5)
class new (label, detailed_action)
class new_from_model (model, item_index)
class new_section (label, section)
class new_submenu (label, submenu)
  get_attribute_value (attribute, expected_type)
  get_link (link)
  set_action_and_target_value (action, target_value)
  set_attribute (attributes)
  set_attribute_value (attribute, value)
  set_detailed_action (detailed_action)
  set_icon (icon)
  set_label (label)
  set_link (link, model)
  set_section (section)
  set_submenu (submenu)

Virtual Methods

Inherited:GObject.Object (7)

Properties

None

Signals

Inherited:GObject.Object (1)

Fields

Inherited:GObject.Object (1)

Class Details

class Gio.MenuItem(**kwargs)
Bases:GObject.Object
Abstract:No

Gio.MenuItem is an opaque structure type. You must access it using the functions below.

New in version 2.32.

classmethod new(label, detailed_action)[source]
Parameters:
  • label (str or None) – the section label, or None
  • detailed_action (str or None) – the detailed action string, or None
Returns:

a new Gio.MenuItem

Return type:

Gio.MenuItem

Creates a new Gio.MenuItem.

If label is non-None it is used to set the “label” attribute of the new item.

If detailed_action is non-None it is used to set the “action” and possibly the “target” attribute of the new item. See Gio.MenuItem.set_detailed_action() for more information.

New in version 2.32.

classmethod new_from_model(model, item_index)[source]
Parameters:
Returns:

a new Gio.MenuItem.

Return type:

Gio.MenuItem

Creates a Gio.MenuItem as an exact copy of an existing menu item in a Gio.MenuModel.

item_index must be valid (ie: be sure to call Gio.MenuModel.get_n_items() first).

New in version 2.34.

classmethod new_section(label, section)[source]
Parameters:
Returns:

a new Gio.MenuItem

Return type:

Gio.MenuItem

Creates a new Gio.MenuItem representing a section.

This is a convenience API around Gio.MenuItem.new() and Gio.MenuItem.set_section().

The effect of having one menu appear as a section of another is exactly as it sounds: the items from section become a direct part of the menu that menu_item is added to.

Visual separation is typically displayed between two non-empty sections. If label is non-None then it will be encorporated into this visual indication. This allows for labeled subsections of a menu.

As a simple example, consider a typical “Edit” menu from a simple program. It probably contains an “Undo” and “Redo” item, followed by a separator, followed by “Cut”, “Copy” and “Paste”.

This would be accomplished by creating three Gio.Menu instances. The first would be populated with the “Undo” and “Redo” items, and the second with the “Cut”, “Copy” and “Paste” items. The first and second menus would then be added as submenus of the third. In XML format, this would look something like the following:

<menu id='edit-menu'>
  <section>
    <item label='Undo'/>
    <item label='Redo'/>
  </section>
  <section>
    <item label='Cut'/>
    <item label='Copy'/>
    <item label='Paste'/>
  </section>
</menu>

The following example is exactly equivalent. It is more illustrative of the exact relationship between the menus and items (keeping in mind that the ‘link’ element defines a new menu that is linked to the containing one). The style of the second example is more verbose and difficult to read (and therefore not recommended except for the purpose of understanding what is really going on).

<menu id='edit-menu'>
  <item>
    <link name='section'>
      <item label='Undo'/>
      <item label='Redo'/>
    </link>
  </item>
  <item>
    <link name='section'>
      <item label='Cut'/>
      <item label='Copy'/>
      <item label='Paste'/>
    </link>
  </item>
</menu>

New in version 2.32.

classmethod new_submenu(label, submenu)[source]
Parameters:
Returns:

a new Gio.MenuItem

Return type:

Gio.MenuItem

Creates a new Gio.MenuItem representing a submenu.

This is a convenience API around Gio.MenuItem.new() and Gio.MenuItem.set_submenu().

New in version 2.32.

get_attribute_value(attribute, expected_type)[source]
Parameters:
  • attribute (str) – the attribute name to query
  • expected_type (GLib.VariantType or None) – the expected type of the attribute
Returns:

the attribute value, or None

Return type:

GLib.Variant

Queries the named attribute on self.

If expected_type is specified and the attribute does not have this type, None is returned. None is also returned if the attribute simply does not exist.

New in version 2.34.

Parameters:link (str) – the link name to query
Returns:the link, or None
Return type:Gio.MenuModel

Queries the named link on self.

New in version 2.34.

set_action_and_target_value(action, target_value)[source]
Parameters:

Sets or unsets the “action” and “target” attributes of self.

If action is None then both the “action” and “target” attributes are unset (and target_value is ignored).

If action is non-None then the “action” attribute is set. The “target” attribute is then set to the value of target_value if it is non-None or unset otherwise.

Normal menu items (ie: not submenu, section or other custom item types) are expected to have the “action” attribute set to identify the action that they are associated with. The state type of the action help to determine the disposition of the menu item. See Gio.Action and Gio.ActionGroup for an overview of actions.

In general, clicking on the menu item will result in activation of the named action with the “target” attribute given as the parameter to the action invocation. If the “target” attribute is not set then the action is invoked with no parameter.

If the action has no state then the menu item is usually drawn as a plain menu item (ie: with no additional decoration).

If the action has a boolean state then the menu item is usually drawn as a toggle menu item (ie: with a checkmark or equivalent indication). The item should be marked as ‘toggled’ or ‘checked’ when the boolean state is True.

If the action has a string state then the menu item is usually drawn as a radio menu item (ie: with a radio bullet or equivalent indication). The item should be marked as ‘selected’ when the string state is equal to the value of the target property.

See g_menu_item_set_action_and_target() or Gio.MenuItem.set_detailed_action() for two equivalent calls that are probably more convenient for most uses.

New in version 2.32.

set_attribute(attributes)[source]

Sets or unsets an attribute on self.

The attribute to set or unset is specified by attribute. This can be one of the standard attribute names Gio.MENU_ATTRIBUTE_LABEL, Gio.MENU_ATTRIBUTE_ACTION, Gio.MENU_ATTRIBUTE_TARGET, or a custom attribute name. Attribute names are restricted to lowercase characters, numbers and ‘-‘. Furthermore, the names must begin with a lowercase character, must not end with a ‘-‘, and must not contain consecutive dashes.

If format_string is non-None then the proper position parameters are collected to create a GLib.Variant instance to use as the attribute value. If it is None then the positional parameterrs are ignored and the named attribute is unset.

See also Gio.MenuItem.set_attribute_value() for an equivalent call that directly accepts a GLib.Variant.

New in version 2.32.

set_attribute_value(attribute, value)[source]
Parameters:

Sets or unsets an attribute on self.

The attribute to set or unset is specified by attribute. This can be one of the standard attribute names Gio.MENU_ATTRIBUTE_LABEL, Gio.MENU_ATTRIBUTE_ACTION, Gio.MENU_ATTRIBUTE_TARGET, or a custom attribute name. Attribute names are restricted to lowercase characters, numbers and ‘-‘. Furthermore, the names must begin with a lowercase character, must not end with a ‘-‘, and must not contain consecutive dashes.

must consist only of lowercase ASCII characters, digits and ‘-‘.

If value is non-None then it is used as the new value for the attribute. If value is None then the attribute is unset. If the value GLib.Variant is floating, it is consumed.

See also Gio.MenuItem.set_attribute() for a more convenient way to do the same.

New in version 2.32.

set_detailed_action(detailed_action)[source]
Parameters:detailed_action (str) – the “detailed” action string

Sets the “action” and possibly the “target” attribute of self.

The format of detailed_action is the same format parsed by Gio.Action.parse_detailed_name().

See g_menu_item_set_action_and_target() or Gio.MenuItem.set_action_and_target_value() for more flexible (but slightly less convenient) alternatives.

See also Gio.MenuItem.set_action_and_target_value() for a description of the semantics of the action and target attributes.

New in version 2.32.

set_icon(icon)[source]
Parameters:icon (Gio.Icon) – a Gio.Icon, or None

Sets (or unsets) the icon on self.

This call is the same as calling Gio.Icon.serialize() and using the result as the value to Gio.MenuItem.set_attribute_value() for Gio.MENU_ATTRIBUTE_ICON.

This API is only intended for use with “noun” menu items; things like bookmarks or applications in an “Open With” menu. Don’t use it on menu items corresponding to verbs (eg: stock icons for ‘Save’ or ‘Quit’).

If icon is None then the icon is unset.

New in version 2.38.

set_label(label)[source]
Parameters:label (str or None) – the label to set, or None to unset

Sets or unsets the “label” attribute of self.

If label is non-None it is used as the label for the menu item. If it is None then the label attribute is unset.

New in version 2.32.

Parameters:

Creates a link from self to model if non-None, or unsets it.

Links are used to establish a relationship between a particular menu item and another menu. For example, Gio.MENU_LINK_SUBMENU is used to associate a submenu with a particular menu item, and Gio.MENU_LINK_SECTION is used to create a section. Other types of link can be used, but there is no guarantee that clients will be able to make sense of them. Link types are restricted to lowercase characters, numbers and ‘-‘. Furthermore, the names must begin with a lowercase character, must not end with a ‘-‘, and must not contain consecutive dashes.

New in version 2.32.

set_section(section)[source]
Parameters:section (Gio.MenuModel or None) – a Gio.MenuModel, or None

Sets or unsets the “section” link of self to section.

The effect of having one menu appear as a section of another is exactly as it sounds: the items from section become a direct part of the menu that self is added to. See Gio.MenuItem.new_section() for more information about what it means for a menu item to be a section.

New in version 2.32.

set_submenu(submenu)[source]
Parameters:submenu (Gio.MenuModel or None) – a Gio.MenuModel, or None

Sets or unsets the “submenu” link of self to submenu.

If submenu is non-None, it is linked to. If it is None then the link is unset.

The effect of having one menu appear as a submenu of another is exactly as it sounds.

New in version 2.32.